Grapple.



J @Mw/ff PATENTED MAY 7, 1907. P. L. NIEDERMIER.

GRAPPLE.

APPLICATION FILED APB..'5, 1906. RENEWED APE. 1 2, 1907.

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FFIQE@ PETER L. NIEDERMIER, OF HARVEY, LOUISIANA.

GRAPPLE.

Specification of Letters Patent.

Patented May '7, 1907.

Application filed April 5, 1906. Renewed April 12, 1907. Serial No. 367,804.

, more particularly to that class known as log hooks.

One object of the invention is to provide a device for the raising of sunken logs.

Another object resides in the provision of a grapple embodying such characteristics that 'when it is submerged to lift a log out of the water a positive gripping action will be had upon the log.

A still further object is to provide a grapple having means whereby it may be readily disengaged from a log under water or from foreign matter as debris even though the manipulator or operator maybe at a considerable distance from the grapple.

lith the above and other objects in view the present invention consists in the combination and arrangement of parts hereinafter referred to, illustrated in the accompanying drawings and particularly pointed out in the appended claims.

In the drawings: Figure 1 is a perspective view of my invention; and Fig. 2 is a sectional view on the line a-a of Fig. 1.

Referring now more particularly to the accompanying drawings, the reference characters 1 and 2 indicate curved arms pivoted together intermediate their ends by a suitable pivot pin 3. The lower end of each arm is preferably sharpened so that it may readily bite into or engage a log.

A link 4 has one end pivoted to the upper end of the arm 1 by means of a suitable pivot pin 5 with its opposite end pivoted between the inner ends of a pair of spaced links 6 by means of a pivot pin 7, the outer ends of the pair of links being pivoted upon opposite sides oi the arm 2 by means of a pivot pin 8.

Disposed upon opposite ends of the pivot pin 3 are elements 9 and 10 which extend upwardly between the upper ends of the arms 1 and 2. These elements may be pivoted upon the pivot 3 or they may be fixed thereupon as desired. In any event, a sheave 11 is mounted between them at the upper ends thereof upon a suitable axis 12 for a purpose presently understood.

A loop member 13 embraces the links 5 land 6 at their pivotal connection and in Jfact this loop member 13 has its sides 14 and 15 pivotally or iixedly secured to the corresponding ends of the pivot pin 7.

A lift line 16 is secured to the upper end of the loop member 13 so that a pull thereupon will close the grapple; that is, force the lower ends of the arms 1 and 2 toward each other to engage the log and the greater the pull upon the lift line more positively will the grapple engage and hold the log.

In the event that it should be desired to release the log while still submerged or to release the grapple from debris or other foreign matter if it should become engaged therewith, I provide a releasing line 17 having one end connected to the lower end of the loop member 13 and passed downwardly over the sheave 1.1 and then upwardly between the pair of links 6 to a distant point so that by a pull thereuponvthe linksl 5 and 6 will cause the grapple to open; that is throw the upper ends of the arms 1 and 2 inwardly toward each otlier'and cause the lower ends of the arms to move outwardly from eacn other and consequently away from the log, debris, or other objects or matter.

From the foregoing it will be seen that my invention is very simple and consequently cheap of manufacture. It will also be seen that the lift line, which may be properly termed a weight line.is so connected to the grapple that the greater the strain in lifting the log the more positively will the grapple engage and hold the log. It will also be an appreciative fact that ceasing to pull upon the lift line and by pulling upon the releasing line the grapple will readily and quickly become disengaged from a log or other object.

Vhat is claimed is 1. A grapple comprising arms pivotally connected together intermediate their ends, a pair of links connected to one end of one arm, a single link connected to one end of the other arm, the links of each arm being pivoted together, a loop connected to the pivot of the links, a sheave mounted immediately above the pivot of the arms, a line connected to one end of said loop, and another line connected to the opposite end of the loop and passed around the sheave and between the aforesaid pair of links.

2. A grapple comprising arms pivoted together, a pair of links having connection TOO with one arm, a link having connection with the other arm and pvoted between the pair of links, a loop having connection with the pvot of the links, a sheave, a line having oonneotion with the loop, and a line having oonneeton with the loop and the sheave.

3. A grapple comprising arms pivoted together, link oonneotlons between the arms, a sheave, aloop member embracing the link connections, means connected with the loop member to elose the grapple, and means conneoted with the loop member and passed over the sheave to operi the grapple.

In testimony whereof I have signed my name to this speoeaton n the presence of 15 two subscribing witnesses.

PETER L. NIEDERMIER. Witnesses:

CnEsTEn W. BROWN, LoUIs L. MAYENNO. 

